Bit-stock.



A. P. & J. G. WELLS. B11' sToom APPLIOATION H LED MARA?, 1912.

1,059,242;` Patented Apr. 15, 1913.

3 noauto UNITEI) STATES PATENT OFFICE.

ALPHERI) P. WELLS .AND JOSEPH C. WELLS, OF EAST STONE GAP, VIRGINIA,ASSIGN- ORS OF ONE-EIGHTEENTH TO JOHN GrOOlDLOIEt,` ONE-EIGHTEENT'H TOWILLIAM GOODLOE, ONE-EIGI-ITEENTH TO ,EDWARD GOODLOE, AND REEDER, ALL OFBIG STONE GAP, VIRGINIA.

BIT-STOCK.

Specification of Letters Patent.

Patented Apr. 1 5, 1 91 3.

Application tiled March 27, 1912. Serial No. 686,464.

To all whom it may concern Be it known that we, ALPHERD l". VnLLs andJossrn C. Wants, citizens of the United States, residing at East StoneGap, in the county of `Wise and State of Virginia, have invented new anduseful Improvements in Bi tStoeks,of which the following isaspecification.

This invention relates to coal augers and has for an object to provideapparatus of this character which will possess a maximum efficiency andwhich will be capable of being driven with a minimum amount of power.

In the drawing forming a port-ionof this application and in which likeletters of reference indicate similar parts in the several viewsz-Figure 1 is a perspective lview of the auger. Fig. 2 is a verticalsection therethrough. Fig. 3 is a section on line 3-3 of Fig. 1. t

The auger comprises a supporting frame 1 which is preferably constructedfrom a single piece of metal bent upon itself to provide the parallelside portions 2, and the end portion 3 and the companion shank formingportions 4, the terminals of the said portions 4 being extended inopposite directions as at 5 so as to form'a rest against which thebreast of the operator may be brought to bear so that the cuttingtool ofthe auger can be operatively applied to its work.

A rod 6 is secured by the bolt 7 between the portions 4 of the frame 1,and as illus trated this rod is provided with a threaded portion 7 Whichextends into the space of the frame 1 Which is defined by the parallelside portions 2 and the end 3 of the frame 1. The portion 7 hasadjustably connected therewith a coupling` sleeve 8 which is knurledexteriorly whereby it can be manually adjusted.

Aichuck-carrying spindle 9 is journaled in the center of the portion 3of the frame 1 and in a bearing bar 10. The said bar 10 is secured as at11 to the portions 2 as shown. The spindle 9 has secured thereto abeveled gear Wheel 13 Which is provided With a conical recess 14 whichreceives the conical end 15 of the adjustable thrust bearing 16. Thisthrust bearing is provided with an integral threaded portion 17 whichalso receives the sleeve or coupling member 8 whereby when the latter isadjusted the thrust bearing, and the portion 6 upon the frame 1 can bead justed relatively to regulate the bearingetiiciency of the portion 16as is understood. With a view to preventing the retrograde rotation ofthe 'thrust bearing we provide the latter withan offset `portion 18which is slidable in the elongated slot 19 in the extension 20 upon theframe 1. The spindle 9 maybe of any suitable well known construction andillustrated it has a cutting 4tool 2l detachably connected thereto.

A driving shaft 2Q is journaled in the por tions 2 of the frame 1 and ateach end the shaft is provided with a crank handle 23. Secured to theshaft 22 is a driving or beveled gear wheel 24 which meshes with thegear wheel 13 so that the cutting tool of the auger will be revolvedwhen power isV applied to said shaft 22.

The shank of the frame 1 which, as described, is formed by the portions4 is reinforced materially by extending the rod 6 therebetween as shown.The said shank of the frame is disposed in axial alinement with thecutting tool so that the latter will revolve with a maximum efliciencyand with an expenditure of `a minimum amount of power. As the occasionmay demand the bearing 1G and the rod 6 can be adjusted relatively sothat the intermeshing gear wheels can be maintained in properengagement.

lVe claim:

1. An auger comprising a frame having a shank portion, a breast engagingportion at one end o't' the shank, a chuck-carrying spindle revolublymounted in the frame and provided with a gear wheel, a driving shaftsupported by the frame, a gear Wheel carried by the driving shaft and"meshing with the first gear wheel,` and a bearing engaging against thefirst gear wheel in axial alinement with the chuck and in axialalinement with the shank.

2. A. tool of the character described comprising a frame, achuck-carrying spindle revolubly mounted in the frame and provided witha gear wheel, a driving crank shaft carried by the frame, a gear wheelon the crank shaft meshing with the first gear wheel, and an adjustablethrust bearing carried by the frame and bearing against the ONE-SIXTH T0A; HQ

lrod secured to the `shank'. of the frame, a

thrust bearing disposed in axial alinement` l with the vrodand engaginagainst the secmember onr the ond gear "wheel, a slotte frame, means onthejthrust bearing having sliding engagement in the slot, and a couplingsleeve adjustably 4. Atool of the character describedicomprising a framehavinga shank portion provided with a breast rest at one end, adrivconnectingthe rod v with 'said thrust bearing.

'ing4 shaft jonrnaled in the frame, a gear .wheel on the shaft, a secondgear wheel: journaled in the frame at right angles to the frstfgear-wheel and engageable therewith, a

chuck-carrying spindle `attached to thesecond gear wheel, means foroperating the `firstgear wheel, a rod secured to the shank of the fframe, a thrust bearing adjustably secured to said rod and disposed 1inaxial alinement therewith: and engaging `the second-gearwheel,` andmeans for preventing rotationof 1 the said thrust'bearing. c InLtestimony whereof we aiix our signatures in presence of two witnesses.

A.` P. WELLS. J. C. WELLS.

Witnesses:

E;`B. MoELRoY, T.`W. OWENS.

